Lego 42129 Technic Mercedes-Benz Zetros Trial Truck
Lego Technic Technic Lego Lego Mercedes

LEGO 42129 Technic Mercedes-Benz Zetros Trial Truck. Add this LEGO Mercedes Benz Technic truck to your collection at a huge discount. Technic LEGO is the ultimate LEGO experience for any aspiring builder. With its advanced engineering and complex mechanisms, it allows you to create intricate and functioning models. And let’s not forget about the LEGO Technic trucks – these machines are beasts, especially this Mercedes LEGO Truck. With their robust suspension systems and powerful engines, they are the true kings of the LEGO road. And if you’re looking to challenge yourself, the trucks offer a great way to test your skills and push your building abilities to the limit. Whether you’re a serious builder or just looking for a fun way to pass the time, LEGO Technic will not disappoint. Who needs to buy a real truck when you can assemble your own LEGO Technic masterpiece?

Set Details

The LEGO® 42129 Technic™ 4×4 Mercedes-Benz Zetros Trial Truck is an impressive model that provides an immersive building experience for individuals aged 12 and above. You can explore the truck’s realistic features, such as the accessible cab doors and hood, the functional suspension on all four wheels, and the service hatch for inspecting the gearbox. Additionally, admire the intricately designed engine complete with a spinning radiator fan. With a groundbreaking addition to LEGO Technic, this model introduces differential locking. Utilize the accompanying app to effortlessly engage and disengage the differentials, enabling easy manoeuvrability over rugged terrains.

Model Name Mercedes-Benz Zetros Trial Truck
Model Number 42129
Theme Technic
Sub Themes Licensed
Pieces 2110
Minifigures N/A
Launch Date August 2021
Current Status Retiring Soon
Date Retired N/A
RRP £285

Investment Potential

A stunning truck, with an engaging and challenging build and great to display or play with. Is it a great investment? We think it may be at the currently available discounts.

Soon to be retiring, head on over to Amazon for a 46% discount to £154.29 before it disappears for good.

Launch RRP £285
Price Per Piece £0.14
Launch Price per piece £0.14
5th Year Value £417
Percentage Increase 46%
Expected Annual Growth 10%
Theme Growth 10%
Sub Theme Growth 10%

Theme Analysis

The LEGO Technic theme has shown solid if unspectacular growth of 10% a year over a large sample size but you do tend to find quite a variety of performance on a set by set basis with in.

We have looked at a variety of LEGO Technic vehicles including the standout LEGO Technics Porsche 911 GT3 RS which has delivered stunning annual growth of 28%.

Set Number Set Name Retired Date RRP Current Value Total Growth Annualised Growth
42056 Porsche 911 GT3 RS December 2018 £260 £785 202% 28%
42063 BMW R 1200 GS Adventure December 2018 £55 £113 105% 17%
42053 Volvo EW160E December 2017 £75 £141 87% 12%
42093 Chevrolet Corvette ZR1 July 2021 £40 £38 -5% -3%

Comparable Set Analysis

When looking at the more comparable LEGO Technic trucks and similar vehicles, the outcome is very similar with some positive sets and some that have performed less well since retirement. The 2 most important comparators are the 2 other LEGO Mercedes Benz sets; the LEGO Technics Mercedes Benz Arocs 3245 which has delivered annualised growth of 14% and the LEGO Technics Mercedes Benz Unimog U 400 which has returned growth of 5% a year.

Set Number Set Name Retired Date RRP Current Value Total Growth Annualised Growth
42081 Volvo Concept Wheel Loader ZEUX December 2019 £110 £98 -11% -3%
42043 Mercedes-Benz Arocs 3245 December 2017 £180 £373 107% 14%
8110 Mercedes-Benz Unimog U 400 December 2013 £155 £253 63% 5%
42054 CLAAS XERION 5000 TRAC VC December 2017 £130 £292 125% 16%


At RRP, this would be a borderline pick for us, a decent chance of single digit, maybe 10% growth a year but with a relatively limited upside at the price point. However, the nearly 50% discount and short time to retirement is enough to tip this into an investment for us, but only at the discounted price!